| 摘要 |
A receiver receives transmitted data, and a decoder detects the number of error bits in the received data based on check data contained in the received data. If the number of error bits is 2 or less, then when an error correction is instructed by a selector switch, the decoder effects an error correction on message data, and the corrected message data are stored in a RAM. If the number of error bits is more than 2, the decoder does not effect an error correction on the message data, and the message data with error bits are stored in the RAM. When the message data stored in the RAM are displayed on a display screen, the user sees either the corrected message or the uncorrected message.
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